阿托伐他汀40 mg对急性冠状动脉综合征介入术后患者的影响

目的 研究给予急性冠状动脉综合征（ACS）行经皮冠状动脉介入术（PCI）后患者40 mg/d阿托伐他汀强化调脂,探讨该治疗方案对炎症因子、调脂疗效及临床心脏事件的影响,同时观察不良反应.方法 92例ACS患者行PCI后,随机分为阿托伐他汀常规剂量（10 mg/d,A组）和大剂量阿托伐他汀（40 mg/d,B组）各46例,用药后4 、12 、24周抽外周静脉血,统一用ELISA法检测血清中高敏C-反应蛋白（hs-CRP）和金属蛋白酶-9（MMP-9）浓度,分析两组间差异,及其与调脂疗效的关系,并观测对肝功能、临床冠状动脉事件等影响.结果 失访率A组6.5%（3例）,B组8.6%（4例）.（1） 两组患者用药后1～12周为丙氨酸氨基转移酶（ALT）出现异常的高峰期,1周,4周,12周异常例数A 组比B组发生率少（P＜0.05）;多数ALT＜3倍正常值,观察4周后恢复正常;而A组有2例（4.7%）、B组有3例（7.1%）的患者ALT＞3倍正常值,需停药,两组各有2例肾功能异常.（2） A、B组患者的血脂下降率在给药12周后总胆固醇（TC） 为12.3%比21.7%（P＜0.05）,给药24周后TC为 11.1%比23.4%（P＜0.05）,低密度脂蛋白胆固醇（LDL-C）为 10.0%比29.5%（P＜0.05）,差异有统计学意义.（3） A、B两组患者血清hs-CRP在服药后下降率分别为4周30.5%比21.8%、12周46.8%比64.3%、24周55.5%比71.7%（P＜0.05）;血清MMP-9 下降率分别为4周49.1%比50.0%、12 周72.7%比84.2%（P＜0.05）;二变量相关分析发现血清hs-CRP浓度下降与TC、LDL-C的变化呈线性相关;血清MMP-9浓度下降与TC、LDL变化也呈线性相关.（4） 随访期内A、B两组不良心脏事件发生率差异无统计学意义.结论 （1） 阿托伐他汀40 mg/d是安全的;（2） 服用阿托伐他汀40 mg/d可显著提高冠心病患者二级预防调脂的达标率,特别是LDL-C降至≤1.8 mmol/L的目标值比例更高 ;（3） 调脂强度与患者的血清hs-CRP与MMP-9的浓度下降趋势有线性相关.

The effects of 40 mg atorvastatin on serum lipids, inflammatory markers and clinical events in ACS patients post PCI

Objective To assess the safety and effects of 40 mg atorvastatin on serum lipids, inflammatory markers and clinical events in ACS patients post PCI.Methods A total of 92 patients with ACS post successful PCI were randomly divided into atorvastatin 10 mg/d (group A) and atorvastatin 40 mg/d (group B) on top of the standard medical therapy. Blood were taken at baseline, 4,12 and 24 weeks for serum alanine aminotransferase (ALT), lipids, high-sensitive C-reactive protein (hs-CRP) and matrix metalloprotease-9 (MMP-9)measurements. The major adverse cardiac events (MACE) were also observed. Results There was no significant difference in medication withdrawn (2 vs. 3 cases) due to increased ALT (3 times higher than normal) and incidence of MACE (5 vs. 7 cases) between the groups. TC and LDL were significantly reduced in both groups 4 weeks and thereafter post medication compared to pre-treatment (P<0.05) and the reduction was more significant in group B than that in group A at 24 weeks post medication (P<0.05) while TG and HDL remained unchanged. hs-CRP was significantly reduced at 12 and 24 weeks in both groups compared to baseline and the reduction was more significant in group B than that in group A at 24 weeks. MMP-9 was significantly reduced in both groups 4 weeks and thereafter post medication compared to pre-treatment (P<0.05) and the reduction was more significant in group B than that in group A at 12 weeks post medication (P<0.05).Conclusion Both atorvastatin doses significantly reduced TC, LDL, hs-CRP and MMP-9 in ACS patients post PCI and the reduction was more significant in high dose atorvastatin group at 24 weeks while the MACE and drug withdraw rates were similar between the groups.